www.recom-power.com REV.: 1/2018 ECO-1

Features

Unregulated Converters

• High efficiency uo to 84% full load

• Low deviation (10% - 100% load)

• 1kVDC and 2kVDC isolation option

• UL60950-1 and EN/IEC60950-1 certified

• -40°C to +100°C operating temperature range

• 1W SIP7 package RB/E

DescriptionThe RB/E series is an unregulated DC/DC converter in standard SIP7 package style. This series has been designed to offer exceptionally high efficiency at low loads, an extended operating temperature range and low deviation (10% to 100%). Uses include applications with restricted energy budget and industrial applications where a high efficiency level is required.

DC/DC Converter

1 Watt SIP7Single Output

E358085

UL60950-1 certifiedCAN/CSA-C22.2 No 60950-1 certifiedEN60950-1 certifiedIEC60950-1 certified

Selection GuidePart nom. Input Output Output Efficiency max. CapacitiveNumber Voltage Voltage Current typ. (1) Load (2)

[VDC] [VDC] [mA] [%] [µF]

RB-3.305S/E (3,4) 3.3 5 200 83 2200

RB-0505S/E (3,4) 5 5 200 84 2200

RB-1205S/E (3,4) 12 5 200 84 2200

RB-2405S/E (3,4) 24 5 200 81 2200

Model Numbering

Notes: Note3: standard part is without continuous short circuit protection add suffix „/P“ for continuous short circuit protection Note4: add suffix „/H“ for 2kVDC isolation or add suffix „/HP“ for 2kVDC isolation and continuous short circuit protection

Ordering Examples:RB-1205S/E: 12VDC Input Voltage, 5VDC Output Voltage, Single OutputRB-3.305S/EP: 3.3VDC Input Voltage, 5VDC Output Voltage, Single Output with continuous short circuit protectionRB-0505S/EH: 5VDC Input Voltage, 5VDC Output Voltage, Single Output with 2kVDC isolationRB-0505S/EHP: 5VDC Input Voltage, 5VDC Output Voltage, Single Output with 2kVDC isolation and continuous short circuit protection

nom. Input Voltage

Output Voltage

RB- __ 05S/E Protection (3)

Isolation Option (4)

Single

Notes: Note1: Efficiency is tested at nominal input and full load at +25°C ambient Note2: Max Cap Load is tested at nominal input and full resistive load and is defined as the capacitive load that will allow start up in under 1s without damage to the converter

www.recom-power.com REV.: 1/2018 ECO-2

DC/DC ConverterSpecifications (measured @ Ta= 25°C, nom. Vin, full load and after warm-up otherwise stated)

RB/ESeries

BASIC CHARACTERISTICSParameter Condition Min. Typ. Max.Internal Input Filter type

Input Voltage Range ±10%

Start-uo time 250ms

Minimum Load (5) 0%

Internal Operating Frequency 20kHz 90kHz

Output Ripple and Noise 20MHz BW 50mVp-p 100mVp-p

Notes: Note5: Operation below 10% load will not harm the converter, but specifications may not be met

Efficiency vs. Load

RB-xx05S/E

0 10 20 30 40 50 60 70 80 90 100

100

80

60

40

90

70

50

30

20

10

0

Effic

ienc

y [%

]

Output Load [%]

3.305050512052405

REGULATIONSParameter Condition ValueOutput Accuracy ±5.0% max.

Line Regulation low line to high line ±1.2% max.

Load Regulation 10% to 100% load 12.0% typ.

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Tolerance Envelope

+10%

+5%

Vnom

+5%

-2%

-5%

Outp

ut V

olta

ge [%

]

10 50 100

Output Load [%]

Typical Load Line

www.recom-power.com REV.: 1/2018 ECO-3

DC/DC ConverterSpecifications (measured @ Ta= 25°C, nom. Vin, full load and after warm-up otherwise stated)

RB/ESeries

Deviation vs. Load

25

15

5

-50

20

10

0

-10

Devi

atio

n [%

]

0 10 20 30 40 50 60 70 80 90 100

Output Load [%]

3.305050512052405

RB-xx05S/E

PROTECTIONSParameter Type Value

Short Circuit Protection (SCP)without suffix

With suffix “/P”1 second

continuous

Isolation Voltage (6) I/P to O/P

without suffixtested for 1 secondrated for 1 minute

1kVDC500VAC

with suffix “/H”

tested for 1 secondrated for 1 minute

2kVDC1kVDC

Isolation Resistance 10GΩ min.

Isolation Capacitance 75pF max.

Insulation Grade basic

Notes: Note6: For repeat Hi-Pot testing, reduce the time and/or the test voltage Note7: Refer to local wiring regulations if input over-current protection is also required. Recommended fuse: T1A slow blow type

ENVIRONMENTALParameter Condition Value Operating Temperature Range full load @ free air convection (see graph) -40°C to + 100°C

Operating Altitude 2000m

Operating Humidity non-condensing 95% RH max.

Pollution Degree PD2

MTBF according to MIL-HDBK-217F, G.B.+25°C

+100°C3459 x 103 hours756 x 103 hours

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www.recom-power.com REV.: 1/2018 ECO-4

DC/DC ConverterSpecifications (measured @ Ta= 25°C, nom. Vin, full load and after warm-up otherwise stated)

RB/ESeries

-40 -20 0 20 40 7060-30 -10 10 30 50 80 90 110100

100

80

60

40

90

70

50

30

20

10

0

Outp

ut L

oad

[%]

Ambient Temperature [°C]

Derating Graph(@ free air convection)

SAFETY AND CERTIFICATIONSCertificate Type (Safety) Report / File Number Standard

Information Technology Equipment, General Requirements for Safety 1602031IEC60950-1:2005, 2nd Edition + A2:2013

EN60950-1:2006 + A2:2013

Information Technology Equipment, General Requirements for Safety E358085-A4-ULUL60950-1, 2nd Edition:2007

CAN/CSA C22.2 No. 60950-1-03, 2nd Edition:2007

EAC RU-AT.49.09571 TP TC 004/2011

RoHs 2+ RoHS-2011/65/EU + AM-2015/863

DIMENSION AND PHYSICAL CHARACTERISTICSParameter Type Value

Materialcase

pottingPCB

non-conductive black plastic (UL94 V-0) epoxy, (UL94 V-0)

FR4, (UL94 V-0)

Dimension (LxWxH) 19.6 x 6.0 x 10.2mm

Weight 2.2g typ.

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www.recom-power.com REV.: 1/2018 ECO-5

DC/DC ConverterSpecifications (measured @ Ta= 25°C, nom. Vin, full load and after warm-up otherwise stated)

RB/ESeries

Pinning informationPin # Single

1 +Vin2 -Vin4 NC5 -Vout6 +Vout

Tolerance:xx.x= ±0.5mmxx.xx= ±0.25mm

1 2 64 5 1 2 64 5

0.50

1.27

10.2

0.51+0.10/-0.05

6.0

1.00 Ø +0.15/-0

19.6

5x2.54= 12.702.00 2.54

2.54

4.10 0.25±0.05

Marking

Bottom View

Top View

embossed logo

Dimension Drawing (mm)

Recommended Footprint Details

NC = no internal connection

PACKAGING INFORMATIONParameter Type ValuePackaging Dimension (LxWxH) tube 520.0 x 16.0 x 9.0mm

Packaging Quantity tube 25pcs

Storage Temperature Range -55°C to +125°C

Storage Humidity 95% RH max.

The product information and specifications may be subject to changes even without prior written notice.The product has been designed for various applications; its suitability lies in the responsibility of each customer. The products are not authorized for use in safety-critical applications without RECOM’s explicit written consent. A safety-critical application is an application where a failure may reasonably be expected to endanger or cause loss of life, inflict bodily harm or damage property. The applicant shall indemnify and hold harmless RECOM, its affiliated companies and its representatives against any damage claims in connection with the unauthorized

use of RECOM products in such safety-critical applications.